Field tests of a low-calorie sport drink found that 80 of the 100 who tasted the beverage preferred it to the regular higher-caloire drink. A break-even analysis indicates that the launch of the...

Field tests of a low-calorie sport drink found that 80 of the 100 who tasted the beverage preferred it to the regular higher-caloire drink. A break-even analysis indicates that the launch of the product will be profitable if the beverage is preferred by more than 75% of all customers.


(a) State the n...